A History of Short Words

From the New York Times Crossword Puzzle

FRAT

Sat, 7 May '22
___ house
Wed, 23 Feb '22
Bunch of brothers, for short
Fri, 21 Jan '22
Campus group
Mon, 30 Aug '21
Sorority's counterpart, informally
Thu, 25 Feb '21
Organization with pledges, informally